Single Pipe Set What sets SLP apart from the rest? Each exhaust system goes through a rigorous engineering process including dyno testing and field verification. This ensures maximum horsepower with unmatched reliability. Most of these exhausts are finished with ceramic coating which not only looks great, but also reduces radiant heat emissions by as much as 40%, resulting in cooler underhood temperatures. It provides an additional 7 horsepower and reduces weight by 14-16.1 pounds.